US3964182A - Mechanical shovel - Google Patents

Mechanical shovel Download PDF

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Publication number
US3964182A
US3964182A US05/519,000 US51900074A US3964182A US 3964182 A US3964182 A US 3964182A US 51900074 A US51900074 A US 51900074A US 3964182 A US3964182 A US 3964182A
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United States
Prior art keywords
operator
boom
shovel
handle
booms
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Expired - Lifetime
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US05/519,000
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English (en)
Inventor
Jean-Claude Pomeret
Henry Bonnevaux
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Individual
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Individual
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Application granted granted Critical
Publication of US3964182A publication Critical patent/US3964182A/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/02—Dredgers; Soil-shifting machines hand-operated ; handheld soil shifting equipment acting by sucking E02F3/8891
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S224/00—Package and article carriers
    • Y10S224/907—Rigid shield or pad positioned between article and bearer

Definitions

  • the present invention relates to a portable shovel capable of motorized operation and more particularly to a digging tool of the type comprising a so-called shovel with handle terminating in two small grips enabling the operator to hold the latter with both hands and a harness allowing the operator to carry on his back a winch with its drive means.
  • the winch comprises a support extending above the operator and has a cable whose end is fixed to the handle of the shovel. Control means for the winch is located on the small grips.
  • a portable shovel of this type is already described in French Patent No. 1,418,935 of Oct. 5th 1964 in the name of Mr. Henry BONNEVAUX. Owing to its motorized operation, this shovel reduces muscular exertion by the operator, while enabling him to work more quickly and with the same accuracy as with an ordinary shovel.
  • An apparatus of this type is particularly intended for removing earth in trenches, work which normally requires considerable muscular exertion since it is necessary to raise the shovel and its contents. This type of work also requires some accuracy owing to the fact that the bottom of a trench is not easily accessible. With a shovel of the aforesaid type, the operator need solely to control the winding of the winch cable to obtain the ascent of the shovel handle and thus raise the load.
  • the mechanical shovel comprises a digging tool, first and second articulated booms and a harness.
  • the first boom is mounted on and substantially parallel to the back of an operator by means of the harness so that the second boom extends forwardly of the operator.
  • the digging tool has a handle which is attached to one end of a cable lifting means at an intermediate portion of the handle. The other end of the cable is attached to winding means supported by one of the booms.
  • the handle is provided with manual control means to activate said winding drum to cause the digging tool to be moved by the cable.
  • the cable from the tool handle to the boom is substantially vertical.
  • the arrangement constituted by the two booms, the cable and the shovel handle thus forms a quadrilateral. Any pulling force towards the front or rear when the loaded shovel is raised, is thus eliminated and there is no danger of the operator becoming unbalanced.
  • the cable is located sufficiently far in front of the operator to prevent any danger of injuring the latter.
  • the support for the digging tool has only slight bulk since its normally horizontal or oblique part (second boom) may be folded back against the harness.
  • the device thus forms a compact arrangement which may be easily stored in an appropriate cover.
  • the vertical part of the support is pivotally mounted with respect to the harness, such that the entire support is free to turn. This pivoting gives the operator maximum freedom of action.
  • the cable is connected to the digging tool, e.g. a shovel, by means of a spring device.
  • This device makes it possible to dampen starting-up and braking shocks.
  • the winding drum of the winch and its drive means are arranged adjacent a pivotal connection of the two booms which allows the booms to be folded together.
  • This arrangement makes it possible to have a better balanced assembly, which is more compact and simplified with respect to the shovel of French Patent No. 1 418 935 in which the drive means are located on the operator's back.
  • the harness of the shovel according to the invention is advantageously composed of a back plate, shoulder-pieces and straps.
  • the straps preferably include a ventral strap and belts passing between the thighs.
  • FIG. 1 is a side view of the shovel in the position of use
  • FIGS. 2 and 3 are respectively front and rear views corresponding to FIG. 1;
  • FIG. 4 shows the same shovel in the folded transportation position.
  • the apparatus comprises a tool 1 called a "shovel” hereafter, but which may have variable shapes: e.g. ordinary shovel, small bucket, fork.
  • the handle 2 of this shovel terminates in two small grips 3 forming a type of handle-bar and enabling the operator to grip the latter.
  • the operator carries a harness composed of a back plate 7, shoulder-pieces 8 and a certain number of straps, including a ventral strap 9 and belts 10 passing between his thighs.
  • first boom 11 of a support Fixed to the back plate 7 and shoulder-pieces 8 is the vertical part (first boom) 11 of a support.
  • second boom 12 which in the example illustrated is oblique, but which may also be horizontal.
  • the second boom extends above the operator and in front of the latter.
  • the oblique part (second boom) 12 of the support is pivoted to the vertical part (first boom) 11, about a pin 13, in order to be able to be folded against the harness in the position for transporting the apparatus, as shown in FIG. 4.
  • a pin 14 makes it possible to immobilize the two parts (booms) 11 and 12 with respect to each other, either in the position of use or in the folded transportation position.
  • the cable 6 passes over a pulley 15 mounted at the end of the oblique part (second boom) 12 of the support and it winds onto a winding drum 16 located in the vicinity of the pivot point of the two parts (booms) 11 and 12 of the support.
  • the drum 16 is connected to drive means 17 comprising a motor and a centrifugal clutch.
  • the motor is pneumatic. It is supplied by an air compressor (not shown), connected to the apparatus by a conduit 18 ending in manual control means 19 arranged on one of the small handles 3.
  • the operation of the apparatus is thus motorized.
  • the operator having filled the shovel 1, progressively actuates its distributor control located at 19 to actuate the pneumatic motor.
  • the centrifugal clutch is thrown into operation progressively and whilst accelerating drives the winding drum 16.
  • the cable 6 raises the shovel 1.
  • the operator maintains a sufficient force for the shovel 1 to remain in the waiting position.
  • the vertical part 11 of the support may be pivotally mounted with respect to the harness such that the entire support is free to turn, thus facilitating the rotation of the shovel 1.
  • This portable shovel is designed for all uses of picking-up or handling materials, but more particularly for removing earth easily in a trench 22 which may have a depth of up to approximately 1.50.m.
  • the apparatus considerably improves the output of a navvy, while eliminating significant muscular exertion.
  • the "shovel" arrangement may be axial, as in the example illustrated, or offset to the side, may be able to pivot or may be fixed.
  • the drive means may be pneumatic, hydraulic, electrical or thermic and similarly it would not be outside the invention to replace certain details of the embodiments above-described by equivalent measures all within the scope of the appended claims.
  • safety devices on the apparatus, in particular means capable of stopping the movements automatically at the end of travel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Handcart (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Shovels (AREA)
  • Jib Cranes (AREA)
US05/519,000 1973-10-31 1974-10-29 Mechanical shovel Expired - Lifetime US3964182A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR73.39465 1973-10-31
FR7339465A FR2249997B1 (enrdf_load_stackoverflow) 1973-10-31 1973-10-31

Publications (1)

Publication Number Publication Date
US3964182A true US3964182A (en) 1976-06-22

Family

ID=9127375

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/519,000 Expired - Lifetime US3964182A (en) 1973-10-31 1974-10-29 Mechanical shovel

Country Status (5)

Country Link
US (1) US3964182A (enrdf_load_stackoverflow)
DE (1) DE2449484B2 (enrdf_load_stackoverflow)
FR (1) FR2249997B1 (enrdf_load_stackoverflow)
GB (1) GB1453209A (enrdf_load_stackoverflow)
IT (1) IT1024640B (enrdf_load_stackoverflow)

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095752A (en) * 1975-09-17 1978-06-20 Societe Civile Particuliere Innovation Promotion S.C.I.P. Motorized shovel
US4168793A (en) * 1975-11-07 1979-09-25 Knight William E Apparatus for carrying loads through the use of backpack frames
US4483070A (en) * 1982-09-21 1984-11-20 Joane G. Tannehill Portable backpacked cutter
US4612716A (en) * 1984-12-12 1986-09-23 Beltrami Osmano Trolley mounted, hand-propelled home/professional digger, or `mini-digger`
USD287367S (en) 1984-09-27 1986-12-23 Blue Ridge Industrial Support Company Motorized shovel
US4757622A (en) * 1986-12-30 1988-07-19 Morris Charles W Portable power shovel
US4772057A (en) * 1987-07-28 1988-09-20 Harvey Henry R Balanced shovel
US5240229A (en) * 1991-11-15 1993-08-31 Timmons Robert D Bailer hoist
US5340233A (en) * 1992-10-07 1994-08-23 M-B-W Inc. Pneumatically operated rammer
US5957213A (en) * 1996-05-30 1999-09-28 Clark Equipment Company Intelligent attachment to a power tool
US6481108B1 (en) * 2001-05-10 2002-11-19 Edward Frank Helinski Portable counterbalancing system for handheld implements
US6634621B2 (en) * 2001-08-03 2003-10-21 Malcolm E. Keith Lifting device and a method for lifting by using the same
US6662881B2 (en) 2001-06-19 2003-12-16 Sweepster, Llc Work attachment for loader vehicle having wireless control over work attachment actuator
US6922920B1 (en) 2003-07-03 2005-08-02 Anthony Stratz Snow removal device
GB2411095A (en) * 2004-02-20 2005-08-24 Paul Clements Digging tool
DE102005016445B4 (de) * 2005-04-04 2008-12-18 Jochen Reuter Handwerkzeug-Impulsgenerator-System und Impulsgenerator-Zwischenstück
US20090071665A1 (en) * 2007-09-17 2009-03-19 Shoap Stephen D Method and System for Fluid Transmission along Significant Distances
US20100006611A1 (en) * 2008-07-11 2010-01-14 Michael Knowles Support apparatus
US20100288366A1 (en) * 2008-09-16 2010-11-18 Shoap Stephen D Method and system for fluid transmission along significant distances
US20110162509A1 (en) * 2010-01-07 2011-07-07 Mrs Nap Llc Apparatus for using a person's hips to carry the load of marching percussion equipment or other objects which are carried near waist-height and in front of a person
WO2011127471A1 (en) 2010-04-09 2011-10-13 Lockheed Martin Corporation Portable load lifting system
US8066161B2 (en) 2007-07-13 2011-11-29 Green Robert D Hands-free lifting and carrying apparatus
AU2011237368B2 (en) * 2010-04-09 2015-07-23 Ekso Bionics Exoskeleton load handling system and method of use
US9095981B2 (en) 2012-01-11 2015-08-04 Garrett W. Brown Load and torque resistant caliper exoskeleton
US9662779B1 (en) * 2016-01-28 2017-05-30 David Yancey Ergonomic counter-balanced handled tool
US9808073B1 (en) 2014-06-19 2017-11-07 Lockheed Martin Corporation Exoskeleton system providing for a load transfer when a user is standing and kneeling
US10124484B1 (en) 2015-12-08 2018-11-13 Lockheed Martin Corporation Load-bearing powered exoskeleton using electromyographic control
US10195736B2 (en) 2015-07-17 2019-02-05 Lockheed Martin Corporation Variable force exoskeleton hip joint
US10327536B2 (en) 2015-10-30 2019-06-25 Ekso Bionics, Inc. Human exoskeleton devices for heavy tool support and use
US10391626B2 (en) * 2014-01-29 2019-08-27 Robotiques 3 Dimensions Exoskelton to be worn on the front and method for using such an exoskeleton
US10518404B2 (en) 2015-07-17 2019-12-31 Lockheed Martin Corporation Variable force exoskeleton hip joint
US10548800B1 (en) 2015-06-18 2020-02-04 Lockheed Martin Corporation Exoskeleton pelvic link having hip joint and inguinal joint
IT201900002775A1 (it) * 2019-02-26 2020-08-26 Bruno Bartolini Dispositivo per il sostegno di una attrezzatura manovrata manualmente da un operatore
US10905907B1 (en) 2016-11-14 2021-02-02 Alexander Dold System and method for leverage-assisted tool and harness
US10912346B1 (en) 2015-11-24 2021-02-09 Lockheed Martin Corporation Exoskeleton boot and lower link
US11207014B2 (en) 2017-08-30 2021-12-28 Lockheed Martin Corporation Automatic sensor selection
IT202000025900A1 (it) 2020-10-30 2022-04-30 Bruno Bartolini Dispositivo per il sostegno di una attrezzatura manovrata manualmente da un operatore
US20240292939A1 (en) * 2023-03-03 2024-09-05 Alessandro Di Leo Articulating tool support

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123490A1 (de) * 1981-06-13 1982-12-30 Hermann 4410 Warendorf Ewers Geraet zum umgraben
FR2713438B1 (fr) * 1993-12-14 1996-01-12 Lafage Georges Dispositif de sécurité pour tailler élaguer et débroussailler les végétaux rapidement et sans fatigue.
GB9403398D0 (en) * 1994-02-23 1994-04-13 Designer Tek Manually carried digger light weight & compact with its own power supply

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE63752C (de) * B. A. DOBSON in Bolton, Grafseh. Lancaster, England Schleifvorrichtung für Deckelkarden
DE7131C (de) * J. H. könekamp in Bremen (Hansa-Brauerei) Verfahren zur Konservierung von Fischen
FR513357A (fr) * 1917-08-06 1921-02-14 Fernand Nouailhac Pioch Dispositif moteur portatif actionnant un outil ou un appareil quelconque porté, ou poussé, ou trainé par le porteur du dispositif moteur
US2520431A (en) * 1946-10-02 1950-08-29 Preston G Pierce Attachment for cranes
US2615584A (en) * 1950-04-21 1952-10-28 Eli J Adams Hydraulic hoist
US2666212A (en) * 1951-01-06 1954-01-19 Roy A Flanders Mobile elevator for invalids
US2750666A (en) * 1953-03-17 1956-06-19 Teagle William Thomas Agricultural appliances
FR1178303A (fr) * 1956-07-09 1959-05-06 Perfectionnements aux instruments à main
FR76086E (fr) * 1959-07-29 1961-09-08 Lance de pulvérisation
US3140800A (en) * 1962-02-21 1964-07-14 Charles F Henderson Dispenser for granular materials
FR1418935A (fr) * 1964-10-05 1965-11-26 Pelle de terrassement à fonctionnement automatique
US3424134A (en) * 1966-12-12 1969-01-28 Irvin Industries Inc Industrial safety harness
US3757744A (en) * 1970-12-15 1973-09-11 Etudes Et Fab Aeronautiques Harness for parachutes and the like

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE63752C (de) * B. A. DOBSON in Bolton, Grafseh. Lancaster, England Schleifvorrichtung für Deckelkarden
DE7131C (de) * J. H. könekamp in Bremen (Hansa-Brauerei) Verfahren zur Konservierung von Fischen
FR513357A (fr) * 1917-08-06 1921-02-14 Fernand Nouailhac Pioch Dispositif moteur portatif actionnant un outil ou un appareil quelconque porté, ou poussé, ou trainé par le porteur du dispositif moteur
US2520431A (en) * 1946-10-02 1950-08-29 Preston G Pierce Attachment for cranes
US2615584A (en) * 1950-04-21 1952-10-28 Eli J Adams Hydraulic hoist
US2666212A (en) * 1951-01-06 1954-01-19 Roy A Flanders Mobile elevator for invalids
US2750666A (en) * 1953-03-17 1956-06-19 Teagle William Thomas Agricultural appliances
FR1178303A (fr) * 1956-07-09 1959-05-06 Perfectionnements aux instruments à main
FR76086E (fr) * 1959-07-29 1961-09-08 Lance de pulvérisation
US3140800A (en) * 1962-02-21 1964-07-14 Charles F Henderson Dispenser for granular materials
FR1418935A (fr) * 1964-10-05 1965-11-26 Pelle de terrassement à fonctionnement automatique
US3424134A (en) * 1966-12-12 1969-01-28 Irvin Industries Inc Industrial safety harness
US3757744A (en) * 1970-12-15 1973-09-11 Etudes Et Fab Aeronautiques Harness for parachutes and the like

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095752A (en) * 1975-09-17 1978-06-20 Societe Civile Particuliere Innovation Promotion S.C.I.P. Motorized shovel
US4168793A (en) * 1975-11-07 1979-09-25 Knight William E Apparatus for carrying loads through the use of backpack frames
US4483070A (en) * 1982-09-21 1984-11-20 Joane G. Tannehill Portable backpacked cutter
USD287367S (en) 1984-09-27 1986-12-23 Blue Ridge Industrial Support Company Motorized shovel
US4612716A (en) * 1984-12-12 1986-09-23 Beltrami Osmano Trolley mounted, hand-propelled home/professional digger, or `mini-digger`
US4757622A (en) * 1986-12-30 1988-07-19 Morris Charles W Portable power shovel
US4772057A (en) * 1987-07-28 1988-09-20 Harvey Henry R Balanced shovel
US5240229A (en) * 1991-11-15 1993-08-31 Timmons Robert D Bailer hoist
US5340233A (en) * 1992-10-07 1994-08-23 M-B-W Inc. Pneumatically operated rammer
US5957213A (en) * 1996-05-30 1999-09-28 Clark Equipment Company Intelligent attachment to a power tool
AU737176B2 (en) * 1997-03-10 2001-08-09 Clark Equipment Company Intelligent attachment to a power tool
US6481108B1 (en) * 2001-05-10 2002-11-19 Edward Frank Helinski Portable counterbalancing system for handheld implements
US6662881B2 (en) 2001-06-19 2003-12-16 Sweepster, Llc Work attachment for loader vehicle having wireless control over work attachment actuator
US6634621B2 (en) * 2001-08-03 2003-10-21 Malcolm E. Keith Lifting device and a method for lifting by using the same
US6922920B1 (en) 2003-07-03 2005-08-02 Anthony Stratz Snow removal device
GB2411095A (en) * 2004-02-20 2005-08-24 Paul Clements Digging tool
GB2411095B (en) * 2004-02-20 2007-09-26 Paul Clements Digging implement
DE102005016445B4 (de) * 2005-04-04 2008-12-18 Jochen Reuter Handwerkzeug-Impulsgenerator-System und Impulsgenerator-Zwischenstück
US8066161B2 (en) 2007-07-13 2011-11-29 Green Robert D Hands-free lifting and carrying apparatus
US20090071665A1 (en) * 2007-09-17 2009-03-19 Shoap Stephen D Method and System for Fluid Transmission along Significant Distances
US7819345B2 (en) 2007-09-17 2010-10-26 Shoap Stephen D Method and system for fluid transmission along significant distances
US20100006611A1 (en) * 2008-07-11 2010-01-14 Michael Knowles Support apparatus
US8028880B2 (en) * 2008-07-11 2011-10-04 Michael Knowles Support apparatus
US20100288366A1 (en) * 2008-09-16 2010-11-18 Shoap Stephen D Method and system for fluid transmission along significant distances
US7942350B2 (en) 2008-09-16 2011-05-17 Shoap Stephen D Method and system for fluid transmission along significant distances
US8026433B2 (en) * 2010-01-07 2011-09-27 Ned Allen Place Apparatus for using a person's hips to carry the load of marching percussion equipment or other objects which are carried near waist-height and in front of a person
US20110162509A1 (en) * 2010-01-07 2011-07-07 Mrs Nap Llc Apparatus for using a person's hips to carry the load of marching percussion equipment or other objects which are carried near waist-height and in front of a person
US20110264014A1 (en) * 2010-04-09 2011-10-27 Lockheed Martin Corporation Portable load lifting system
AU2011237368B2 (en) * 2010-04-09 2015-07-23 Ekso Bionics Exoskeleton load handling system and method of use
US9333644B2 (en) * 2010-04-09 2016-05-10 Lockheed Martin Corporation Portable load lifting system
US9504623B2 (en) 2010-04-09 2016-11-29 Ekso Bionics, Inc. Exoskeleton load handling system and method of use
WO2011127471A1 (en) 2010-04-09 2011-10-13 Lockheed Martin Corporation Portable load lifting system
US9095981B2 (en) 2012-01-11 2015-08-04 Garrett W. Brown Load and torque resistant caliper exoskeleton
US10391626B2 (en) * 2014-01-29 2019-08-27 Robotiques 3 Dimensions Exoskelton to be worn on the front and method for using such an exoskeleton
US10561568B1 (en) 2014-06-19 2020-02-18 Lockheed Martin Corporation Exoskeleton system providing for a load transfer when a user is standing and kneeling
US9808073B1 (en) 2014-06-19 2017-11-07 Lockheed Martin Corporation Exoskeleton system providing for a load transfer when a user is standing and kneeling
US10548800B1 (en) 2015-06-18 2020-02-04 Lockheed Martin Corporation Exoskeleton pelvic link having hip joint and inguinal joint
US10195736B2 (en) 2015-07-17 2019-02-05 Lockheed Martin Corporation Variable force exoskeleton hip joint
US10518404B2 (en) 2015-07-17 2019-12-31 Lockheed Martin Corporation Variable force exoskeleton hip joint
US10327536B2 (en) 2015-10-30 2019-06-25 Ekso Bionics, Inc. Human exoskeleton devices for heavy tool support and use
US10912346B1 (en) 2015-11-24 2021-02-09 Lockheed Martin Corporation Exoskeleton boot and lower link
US10124484B1 (en) 2015-12-08 2018-11-13 Lockheed Martin Corporation Load-bearing powered exoskeleton using electromyographic control
US9662779B1 (en) * 2016-01-28 2017-05-30 David Yancey Ergonomic counter-balanced handled tool
US10905907B1 (en) 2016-11-14 2021-02-02 Alexander Dold System and method for leverage-assisted tool and harness
US11207014B2 (en) 2017-08-30 2021-12-28 Lockheed Martin Corporation Automatic sensor selection
IT201900002775A1 (it) * 2019-02-26 2020-08-26 Bruno Bartolini Dispositivo per il sostegno di una attrezzatura manovrata manualmente da un operatore
IT202000025900A1 (it) 2020-10-30 2022-04-30 Bruno Bartolini Dispositivo per il sostegno di una attrezzatura manovrata manualmente da un operatore
US20240292939A1 (en) * 2023-03-03 2024-09-05 Alessandro Di Leo Articulating tool support

Also Published As

Publication number Publication date
GB1453209A (en) 1976-10-20
IT1024640B (it) 1978-07-20
FR2249997B1 (enrdf_load_stackoverflow) 1979-03-09
DE2449484B2 (de) 1977-06-02
DE2449484A1 (de) 1975-05-15
FR2249997A1 (enrdf_load_stackoverflow) 1975-05-30

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